random=Math.round(Math.random() * 2);

//a

if (random=="0"){ document.write ('<td width="95%" background="http://www.lavillita.com/_static/sanantonioart.jpg">&nbsp;&nbsp;&nbsp;</td>');document.close();}

//b

if (random=="1"){ document.write ('<td width="95%" background="http://www.lavillita.com/_static/sanantoniogalleries.jpg">&nbsp;&nbsp;&nbsp;</td>');document.close();}

//C

if (random=="2"){ document.write ('<td width="95%" background="http://www.lavillita.com/_static/sanantonioart2.jpg">&nbsp;&nbsp;&nbsp;</td>');document.close();}